1 # This program is free software: you can redistribute it and/or modify
2 # it under the terms of the GNU General Public License as published by
3 # the Free Software Foundation, either version 3 of the License, or
4 # (at your option) any later version.
6 # This program is distributed in the hope that it will be useful,
7 # but WITHOUT ANY WARRANTY; without even the implied warranty of
8 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
9 # GNU General Public License for more details.
11 # You should have received a copy of the GNU General Public License
12 # along with this program. If not, see <http://www.gnu.org/licenses/>.
14 # fixes for bugs in bush-4.2 regarding empty strings in expand_string_for_rhs
34 recho ${foo/bb/$empty}
45 recho ${S2^"$v"[aeiou]}
46 recho ${S2^^"$v"[aeiou]}
54 if [[ $var == "" ]]; then
58 if [[ "$var"X == ""X ]]; then
62 if [ "$var"X == ""X"" ]; then
70 if [[ X"" == X ]]; then
77 x??) echo 'this would be really odd'
79 x?) echo 'does this prove anything?'
86 if [[ x"" == x ]]; then
90 if [[ x"
\x01" == x"
\x01" ]]; then
101 if [[ x"
\x7f" == x"
\x7f" ]]; then
108 "x
\x7f") echo ok 6 ;;
113 "x
\x7f") echo CTLNUL 7 ;;